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780755-05-7

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780755-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 780755-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,0,7,5 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 780755-05:
(8*7)+(7*8)+(6*0)+(5*7)+(4*5)+(3*5)+(2*0)+(1*5)=187
187 % 10 = 7
So 780755-05-7 is a valid CAS Registry Number.

780755-05-7Downstream Products

780755-05-7Relevant articles and documents

Three-component synthesis of polysubstituted benzene derivatives via Diels-Alder reaction of cyclopentadienone acetal with alkyne

Sato, Sota,Isobe, Hiroyuki,Tanaka, Takatsugu,Ushijima, Tomohiko,Nakamura, Eiichi

, p. 11449 - 11455 (2007/10/03)

An efficient and regioselective synthesis of polysubstituted benzene derivatives was achieved via multicomponent reaction of a substituted cyclopropenone acetal and two alkyne molecules. The synthesis utilizes cyclopentadienone acetal as an intermediate a

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